Mechanically-operated gear-changing mechanism for automobiles.



' D. G. LEWIS.

WlECHANiCALLY GPERATED GEAR CHANGING MECHAMSM FOR AUTOMOBILES. d APPLICATION maxi APR.9, 1915.-

q fi sf}? 1 Patented- Jan. 18, 1916.

4 SHEETS-SHEET 1.

FUTORA/fk D. G. LEVWS. -MECHAN|CALLY OPERATED GEAR CHANGING MECHANISM FOR AUTQMOBILES. 1 APPLICATION FILED Ammmsl I Patented Jan. 18, 1916.

4 SHEETS-SHEET 3.

WIT/V535.-

i JL Au.

DEAN Ci LEW'I OF PHILADELPHIA TUBING COMPANY, OF PHILA= PENNSYLVAIFIA.

.53. CGRPOR MECHANICALLY-OPERATE GEL?- i {i 653,937 Specification of Letteis Applicaiion file fipril l7,

that I Dr Lid Sint residing at iphin and 55mm entail a. new anti of leniisyimiiin, have i1 useful improvex Med Ge: r-Chan mobiles, of \Yhi :11, and exact desci-iptimi. reference i)" 1911; in M's-ch:inicaiiy-Opering Mechanism 01 Autoh the foiimnng is 21 hiih ionn n p; i OI this specific: on. I V The abject of my invention to n-mule i 1;

for vnnng'ing' gears of an aui'omobiie in i. mumiertim ti of a ieier, m by the (mention 5 )ie device to some pi'ed l--J m s]. L

the ordinary chi'i i'i mechz imsn HMJSYH ti 0i? o a positiczn ssrrespi iii-e position of said lever.

adapted 01- this pu @059 s set 10:." zippiia. Lon filed me December Seriai lie. 86; ,01. This mes! zmism i upciruiii'e and efiicienf.

The objer t of thsprc-sent haven m is if: imp-cave this mechanism so as in l a wider mige and render opera S0 nearly perfect.

Another object of the present imeniion in make pmvision or thiwing ant t ciiitch, neutralizing the ears, and appiyi a: brake in successive positions of the 111 lever in its chvich-reieasing movemen COIRQ EQb-y} in the Opposite spring-21c moveni'ent of the dutch lever, to 21mm SUCCQSSiYPif, releasing the. brake, s hjhijti gears and ihrmving in the dutch. 0 A preferred embodiment of 139 invrenriml shown in the drawings, in which Figure 1 is a more 01* less dingrn mantis view she wing an enibodiment 0i? my iZYYQl'l tic-i1. apglied to an mitomebiie. section an the line 2-2- of is n. pian view of the gear-Chang aism partially in seciion. Fig.

1 11011 on the line %-& 01: 1* ig. 5. sectmn on file line 0f F? horimntai section ti'U'fi ugh the 96mm v with disks 21 and 22. By this means, as may.

ings on the frame 9. Arms 26 dependin brake. In'the reverse operation, the brake from rocker 24 .are connected by links 7- is first released, then the gears are shifted be readily seen in Fig. 4, turning rocker 24 gives a similar turn to disks 21, 22, but turns disk 20 in the opposite direction. The projecting end of rocker 24 carries an arm 28 actuated by, rod 29 from the clutch lever 30, which is manually operable to release the clutch connecting driving shaft 14 from engine shaft 31. The first part of the forward movement of lever 30 serves to release the clutch, and to avoid operating the gear shift until after this release, rod 29 has a slotted connection with a pin 280 on arm 28, to allow a certain amount .of free movement. 32, 33 are lugs on the rod at opposite ends of the slot, and 34, are adj ustable projections on arms 28.

In the position shown in Figs. 3 and 4, the gears are in neutral position and rod 29, under the impulse of'clutch spring36, has completed part of its clutch applying movement, in the direction of the arrow. At this point lug 32 engages projection 34. Further movement of rod 29 turns arm 28 and therewith rocker 24, which, as will hereafter be explained, shifts certain gears in the gear case. As arm 28is thus turned, projection 34 gradually rises out of the path of the lugs, and as soon as this occurs the gear-shift movement ceases, and rod 29 is free to com plate the movement given it by the springactuated clutch lever 30, which in this last movement allows the clutch to become operative.

of lug 33 by reason of the-turning of lever 28 in the clutch-applying movement). Further movement of rod 29 carries arm 28 with it, turning rocker 24 in the opposite direction to that before described, and thereby bringing any gears that may be in mesh out of mesh or into neutral position, as will be 50. hereinafter described. As arm 28 turns, projection 35 gradually rises out of the path of lug 33, and when this takes place, the gears have been shifted to neutral and rod 29 is free to finish itsforward movement.

It is thus seen that pressure on the-clutch leverfirst releases the clutch and then throws gears to neutral, and when the clutch lever isallowed to return ,thc shiftof gears is made 'first and then the clutch thrown in. It will also be notedtlrlt in-the clutcl'i-relmising operation, afterft'he-clutch isireleased and the gearsmoVedtoheutral position, the rod 29 has a still further movement, which may be utilized to actuate a brake. 'lhus provision is made to successively release theclutch, shift the gears "to neutral and apply 'the When the clutch lever 30 is depressed, the

into a positive is applied.

In order that this operation may be more clearly understood, '1 have illustrated, in

position, and then the clutch Figs. 8-13, successive positions of the rod 29 engaged by the movable member 61 of the clutch when the same is fully retracted. The

spring 36 has moved the slidable driven-- member 61 of the clutch into driving engage ment with the driving clutch member 62 on the engine shaft 31 and the clutch rod 29 has been moved to the left so that the lugv 33 has moved some distance to the left of projection 35 on the rocket arm 28. In the first part of the movement of the clutch lever 30 and clutch rod 29 to the right (Fig. 9), the clutchis released and the lug 33 moves into contact with the projection 35.v Further:

movement of theclutch lever and clutch rod to the right (Fig. 10) causes lug 33, by its pushing engagement with projection 35, to swing' the rocker arm 25 to efi'ect the shift of the gears to neutral. In the last part of the movement of the clutch lever and clutch rod to the right (Fig. .11) the lug 33 slides under the projection 35 and therefore does not further swing the rocker arm 28 and the clutch member 61 has moved far enough tothe left to cause it to operatively engage the brak shoe 60. When pressure upon "the clutch ver isreleased, the first movement of the clutch member 61 tov the-right (Fig. 12) releases the brake and causes lug 32, in the movement of clutch ro(l 29.,;to the left, to contact with projection 34. Further movement ofthe clutch lever and clutch rod to the left (Fig; 13) causes lug 32, by its pushing engagement with projection 34, to swing the rocker arm to effect the shift of the gears into the selected positive position. The final movement of the clutch lever and clutch rod to the left returns the parts to the position shown in Fig. 8, in which the clutch is again applied.

Gear shifting arms 15 and, 16 are operated from the disks 20, 21, 22 as follows: Hub 17 of arm 15, carries radially slidable dogs 37, I

38. Disk 21 is cored out interiorly to admit dog 37, and the resulting peripheral flange,

which turns in contact with'a similar flange 25 on hub 17, has an opening 39, which together with a similar opening in flange of hubr ,17 admits the passage of dog 37 therethrough. At one side of opening 39, tl 1e flange of disk 21. is relatively. thin. At theother sideof opening 39, the flange relatively thick a'nd into line with the dog, and at the same time holds the other three dogs in inoperative position. The clutch )edal 30 is now pressed. Its first mmement releases the clutch. During this movement the gear til the projection rides up out of the path of lug 33. This forward motion of arm 28 gives a turn to central disk 20, in the opposite direction, which, by virtue of projection 41 therein acting on dog 43, turns hub 18 to neutral, bringing arm 16 from the position shown in Fig. 1 to a vertical position.

In this position openings 39 aline with the dogs, and dog 38 is pressed outwardly therethrough, thereby locking hub 17 with disk 20. Also, in this position, both notches 57 are in line of see-saw lever 56, and either one of hubs 17 or 18 may be turned, thereby locking the other hub neutral. Removing the. pressure from lever 30- now, allows spring 36 to return same, and as already described, prior to applying the cutch to the driving shaft, lug 32 contacts with projection 34and arm 28 is rocked, turning disk 20 and with it arm 15 to shift the gears in the gear case to give the desired first speed. If selector 54 be turned to notch marked N (indicating neutral), the cams are so pinned to the cam shaft that no low point 49 is brought in line with its corresponding plunger 44. Thus. when, in the forward movement of the clutch lever, arms 15 and 16 are broughkto the vertical, and openings '59 register with the dogs, none of 'said dogs is allowed to be pressed outinto Therefore, when the operative position. clutch lever is returned and arm 28 moved in the opposite direction, the disks 20, 21, 22 will all turn freely without moving arms 15 or 16 and the gears in the gear case remain out'of mesh. It is thus seen that prior to every change of gears, everything is brought into a neutral position, and that then only one gear shift, and that the one which has been previously dictated by the selector, may be made.

Having now fully-described my invention, what I claim and desire to protect by Letters Patent is 1. In a gear-changing mechanism for au- 4 tomobiles, the combination with a gearturnable on apcommon axis, of a dog inter posed between the hub and disk and-mov-- able into and-"nut ofpositiontto lock the hub anddisk together, means to turn the disk,

' and selecting means to control the position of the dog.

2. In a gear changing mechanism for an tomobiles, the combination with a gear shiftcommon axis, of means to turn the disks simultaneously in opposite directions, and selectively controlled means to lock either r neither disk to the hub.

3. In a gear changing mechanism for antomobiles, the combination with two gearshifting hubs and an intermediate disk, all turnable one common axis, of means to turn the disk, and selectively controlled means to lock either or neither hub to the disk.

4. In a gear cl'ingingmechanism'for automobiles, the combination with a gear shift- 7 ing hub and two hub-actuating disks, one on each side of the hub, and -all turnable on a common axis, of two dogs, one between each disk and the hub, each dog being movable into and out of position to lock its corresponding disk to the hub, means to turn the disks simultaneously in opposite directions, and selecting means to control the positions of the dogs.

In a gear-changing mechanism. for antomobiles, the combination with two gear shifting hubs and an intermediate disk, all

turnable on a common axis, of two dogs, one

between each hub and the disk, each dog being movable into and out ofiposition to look its corresponding hub to the disk, means to turn the disk, and selecting means to control the positions of the dogs.

. (5. In a gear changing mechanism for automobiles, the combination with two gearshifting hubs and three hub-actuating disks inalternate relation to the hubs, of means to simultaneously turn the end disks inone direction and the middle disk in-theopposite direction, and selectively controlled means to lock either of the hubs to either of the two disks adjacent thereto.

7. In a gear changing mechanism for antomobiles, the combination with two gearshifting hulis and three hub-actuating disks in alternate relation to the hubs, of means to simultaneously turn the end disks in one direction and the middle disk in the oppo- 'sition direction, dogs, one between eachhub and each of thqtwo disks adjacent thereto,

tomobiles, the combination with two gear shifting hubs and three-lmb-actuating disks arranged alternately with the hubs and all turnable on a common axis, of means 'to' simultaneously turnthe 'end disks in one direction and. the'middle disk in the opposite direction, dogs,'on'e between'each hub and each ofthetwo disks adjacent thereto,

each-dog beingmovable into and out of position to key together, the'particular hub to the disk mii having 1- ciit-mmy portion MREipteLiLWiwn the dog moved in, to underi-i j a iii-e flange on the disk and thereby per mit the J 11; to turn wii'iiout turning the hub, u. piungei' adapted when ZILiYZlDCQi to move the dog into iIlOQQliltiWZ position, :i spring tending to ret "act the plunger and move the dog into operative position, and eating means including 21 com fidfiPtflItG be moved to and out of position to adiance the toinuo i i i m (i Eadie into ii-Qhgiigii mechanism for 1mi com) nah: 'QilT-Shlfi 11 wiin b o-oetim ingdisks 3!. 'imgeo e on a common axis, dogs each aci (1 to key ioand ad soem hub, to i in unison, seieotini: means erent COInblnQ'ilOLS or dogs inender di operative.

1'. In a gemhanging mechanism for antozi' iies, the combination with gear-shiftand hub-actuating (lisks 211T: ngeci alternately and turnable on a common axis,

and means to turn the disks in unison, of a of radially movable dogs each adapted i o key together :1 eiisk and an adjacent hub when moved to one radial position and each so s aped that when moved to another i'aciiai iosition it Wiii be inoperative as a key, and selecting means to eontroi she radial positions of the dogs.

1'6, In 11 gm r-ehanging mechanism fo a iomobiles, the combination 'wiLii gear-s ifigz hubs and hiib aetimting disks :umngei erna'teiy and tim'zibie on 2} common axis and ziieans io him the disks in unison, of re iiaii movabie dogs, said disks and hubs iaeii'ig cm; away to form openings for. ihe reception oi the dogs to permit the iziiiei i0 :iet as keys between adjacent hubs am: disks. im; i i he disks anti dogs being cut away to allow disks to clear their coii-espoiiciing dogs b iunign {03 m1 if n hie (iogs are moved into one i'adini ios tion, 2: (1 Selecting means to control the 1 gear siiiit- 1 n 1L E il m mun pos ions of the dogs. d .iizi jinfi ,iei'iph- 17. in a gem changing mechanism for auform on openm ()illfibiiQS, *he combination with two iiftiiig nuns and. an intermediate disk '30 {he} ib f tin-noble on :1 common axis. of means to tm'n I d the disk, seieciiveiy oonti'oiied 1:10am to iock i iii veo. i he nub t1; eitiio hub to the uiSk whereby such hub is 1; mm pro 'liieii 1 Q01- t-iii neiji with the disk, and independent lion. adapted;when flu {Lg is mm'wi i t ienns to iioid ono nub from turning aitei' move within the HMIOW i mzu'r ihe disk weoti'iei'iinsbeenso tin-nod.

hinge and permit the (.iisk mi without, turning LilQ hub, and soieiiinfgj IiE'LH'HH zuiupt- Hi to control 1ws'm'lizii omit-ion o'f the Ling.

12). iii 2i gem" 4 1:11;" 1g mechanism Foinutoiiioiiiie: soomiiimiiion with :1. gear Shift iiui' hub am. 1 iiiii; actuating :iipk. iaoih nix-nniiio on a. common m: s and having periph em flanges out away to form an opening, of :1, dogi i-miiziisv movizinoin said opening iii-why 11m movement of one hub hits the J'iQLi \x'iieii moved mm look the hub lover iiiio engagement with the notch m 110 18. in a gear changing mechanism 101 :mtonmiiiius, the combina ion with two gear shifting imbs and an in mediate disk, all tin-nub, on :1 common a: of means to turn the disk seiectivoiy (mot-roiled means to lock either hub to the iiisk whereby such hub is burned with the disk, and pivoted see-saw iei'eicooperating with notches in the hubs other hub to hold the latter from turning until the first hub is returned to its neutral position.

19. In a gear-changing mechanism for automobiles, the combination of clutchshifting mechanism adapted to be operated changing mechanism, and connections between the clutch-shifting mechanism and the gear changing mechanism, said connec tions including means providing a limlted movement for the clutch-shifting mechanism-relative to the gear-changing mechanism in the initial and final part of the clutch-releasing movement and rendering the gear-changing mechanism operative only in the intermediate part of the clutchreleasing movement.

20. Ina gear changing mechanism for automobiles, the combination of clutchshifting mechanism adapted to be operated in one direction to apply the clutch, gear changing 'mechanism, and connections be- I tween'the clutch shifting mechanism and the gear-changing mechanism, said connections including means providing a' limited move- .ment for the clutch-shifting mechanism relative to the gear-changing mechanism in the initial and final part of the clutch-ape plying movement and rendering the gearchanging mechanism operative in the intermediate part of the clutch-applying movement'. Y

21. In a gear-changing mechanism for automobiles, the combination of clutch-" shifting mechanism adapted to 'be manually operated in opposite directions to apply and release the clutch, .gear-changing mechanism, and connections between the'clutchshifting mechanism-and the gear-changing mechanism, said connections including means providing a limited movement for the clutch-shifting mechanism relative to the gear changingmechanism in the initial and final partof the clutch-operating movement in each direction and rendering the gear-changing mechanism operative in the intermediate part of the clutch operating changing movement,-

22. In a gear changing mechanism for automobiles, the combmation with a' clutch and a brake, of a clutch-shifting rod, gearmechanism including an actuating arm, an cooperating means on the rod and arm'permitting the rod, when actuated in either direction, to actuate the arm to shift the gears and to move relatively to the arm before and after so actuating it, and connections from the rod to the brake and clutch for actuating one in the prellminary relative movement and theother in the final in one direction to release the clutch, gear- 24. In a gear-changing mechanism for automobiles, the combination with a clutch and a brake, of a clutch-shifting'rod, gearchanging mechanism including an actuating arm, and cooperating means on the rod and arm permitting the rod, when moved in one direction, to first move relatively to the arm to release the brake, then actuate the arm to operate the gear-changing -mechanism, and then move relatively the clutch. I

25. In a gear-changing mechanism for automobiles, the combination with a clutchto the arm-to apply shifting rod, of gear-changing mechanism including an actuating arm, a pin and slot connection between the rod and the arm, a

projection on the arm,

lug on the rod and a said'l'ug adapted, after'a limited movement relative to the rod, to engage the projection and swing the arm and then underride the projection during the remaining movement of the rod.

26. In a gear-changing mechanism for automobiles, the combination with a clutchshifting rod,.of gear-changing mechanism including an actuating arm, a pin and slot connection between the rod and the arm, a pair of lugs on the rod and a pair of projectionson the arm, said lugs adapted to cooperate with the projections to effect the swinging of the arm in an intermediate part of the movement of the clutch rod ineither direction.

In testimony of which invention, I have hereunto set this 7th day of April, 1915'. I i v DEAN C. LElVIS.

my hand, at Philadelphia, on. 

